Supporting device for axminster tube frames



Oct. 28 1-924. 1,513,112

E. R. HOLMES SUPPORTING DEVICE FOR AXMINS'IER TUBE FRAMES Filed Aug. 10,1922 Patented Get. 2%, 1924.

ELBRIIDGE R. HOLMES, OF WORCESTER, MASSAGHUSETTS, ASSIGIQ'OR TOCBOIVIPTON z KNOWLES LOGZE "WORKS. 1%. CORPORATION 0F MASSACHUSETTS.

SUPPORTING DEVICE AXMINSTER TUBE FRAMES.

Application filed August 10. 1922. Serial No. 580,892.

r 0 (ZZZ whom it may camera:

Be it known that I, ELBRIDGE R. HoLM'Es, a citizen of the United States,residing at iVorcester, in the county of Worcester and State ofMassachusetts, have invented a new and useful Supporting Device forr'ixminr Tube Frames, of which the following is a specification.

This invention relates to a novel construction by which the tube framesin an AX- ininster loom may be securely supported by thetransportingchains and by the use of which accidental displacement ofthe frames during movement thereof will be effectively prevented. Anexample of sucha loom is found in the U. S. Patent to Vi yman No.490,238 of 1893. y

These tube frames are used in large numbers in such looms and are oftenof very considerable weight, sometimes exceeding twenty pounds per framein wide looms. These tube frames are detachably mounted upontransporting chains by which they are presented in proper sequence atthe point where they are separately released from the chains to insertthe tuft yarn in the fabric It has been customary to connect the tubeframes to the transporting chains by sheet metal springs which at alltimes formed the entire support for the frames. As the width ofAmninster looms has increased, with corresponding increase in the weightof the tubes, the strain upon the supporting hooks has become severe,and broken and detached hooks have frequently resulted.

It is the object of my invention to provide additional or auxiliarysupporting devices by which the tube frames may be safely and securelytransported without the possibility of accident displacement and withoutplacing an undue or continuous strain upon the supporting hooks.

My invention further relates to arrangements and combinations of partswhich will be hereinafter described and more particularly pointed out inthe appended claims.

A preferred form of the invention is shown in the drawings, in which-Fig. 1 is an end View of a number of tube frames and a portion of atransporting chain;

Fig. 2 is an enlarged end elevation of one of the tube frames, withparts of a chain indicated in dotted lines;

3 is a side elevation thereof; Figs/1, 5 and 6 show a tube frame and aportion of a chain in difierent angular resprocket wheels, as shown anddescribed in the VVyman patent above noted.

One of the sprockets 14 (Fig. 1) is supported directly over the point atwhich the yarn tufts are inserted in the warp. The chains areintermittently advanced to suecessively present the tube frames inoperative position. When a tube frame is in the position indicated at 10(Fig. 1), the springs 12 are pressed inward to detach them from thechains l3'and the tube frame is then given the necessary movement toinsert the tuft yarn in the Warp. The frame is then returned to itsoriginal position and is again attached to the chain by the springs 12.

This tube frame is then removed from operative position "by the advancemovement of the chains and is transported through a long and irregularpath of travel before it again returns to operative position. To relievethe severe strain upon the hooks 12 during this transporting movement, Ihave provided the auxiliary supporting devices shown in the drawings. Oneach side of the upper portion of each hanger 11 I provide notches orrecesses 15 forming shoulders 16, well shown in Fig. 5. The transportingchains 13 are commonly formed of alternate single links or block 17 anddouble links 18 secured on each side of the blocks 17. The teeth of thesprocket wheels are notched or recessed and engage the chain on eachside of the single links. The sprockets are also cut away between theteeth to provide clearance for the ends of the hangers 11.

I have also provided extensions 19 at each end of each block 17 adaptedto engage the hangers 11 under the shoulders 16 when the tube frames areout of the position shown at in Fig. 1. When the chain is traveling in asubstantially straight run, as indicated in Fig. 6, the projections 19and the notches may be so related that the hooks 12 will be liftedslightly above the links 18, thus supporting the hangers directly uponthe chain blocks.

When the links are in the angular position shown in Fig. 5, theprojections 19 are sufiiciently separated to permit easy removal andinsertion of the hangers between the ends of the projections but inevery other position at least one of the projections will engage one ofthe shoulders 16, as indicated in the different positions in Fig. 1, andwill prevent-separation of the hangers from the chains, entirelyindependent of their attachment by the hooks 12. The position of thehangers when traveling over a guide sprocket on the inside of a curve isindicated in Fig. 4.

It is the common practice to have the supporting and guiding sprocketsor pulleys for the chains 13 of larger diameter than the pull-oversprockets 1 1. When passing over these larger guide pulleys orsprockets, the blocks 17 are at too slight an angle to release thehangers, even when the latter ar on the outside of the curve.

Having thus described my invention, it will be seen that I have providedauxiliary supports for a tube frame which will securely andindependentlyretain the frame in position on the transporting chains, but will'permitthe frames to be detached from the chains for inserting the tuft yarn inthe warp.

I also wish it to be understood that my invention is not limited to theparticular details herein disclosed, other than as set forth. in theclaims, but what I claim is 1. In an Axminster loom, a tube frame,hangers therefor, transporting chains, detachable connections betweensaid hangers and chains, and additional means to support said tube frameand prevent accidental separation of said hangers and chains as the tubeframe is transported by, said chains.

2. In an Axminster loom, a tube frame, hangers therefor, transportingchains, and a detachable connection between each hanger and chain, saidhanger having notches and said chain havingprojections engaging saidhangers in said notches to prevent displacement of said frame.

3. In an Axminster loom, a tube frame, hangers therefor, transportingchains, detachable connections. between said hangers and chains, andadditional means to prevent accidental separation of said hangers andchains as the tube frame is transported by said chains, said additionalmeans also being effective to raise said tube frame and nor 4. In anAxminster loom, a tube frame,

hangers therefor, and transporting chains comprising alternate singleblocks and donble links, said blocks having extensions at each endengaging portions of said hangers to prevent accidental displacementthereof while the tube frame is transported by said chains.

In testimony whereof I have hereunto affixed my signature.

, ELBRIDGE R. HOLMES.

